Gas prices keep inching up across the state this week. Triple-A Arizona says the price at the pump has risen two-cents a gallon since last week. In Flagstaff gas was up three-tenths of a cent from last week to $3.09 a gallon. Some stations are selling gas for $2.92 and lower. In the Prescott area, gas was up two cents a gallon to $3.07. Some stations there are selling gas for $2.95 and lower. Triple-A says domestic crude inventories continue to grow. Crude storage could see more growth in the coming weeks. Last week’s crude production rate is the highest recorded since the Energy Information Administration began tracking the rate.